The latest episode of One Piece has surprised fans with an unexpected cameo from a major film character confirming her canon existence in the anime.
Why I believe Shanks is the current top 1 strongest alive and why I'd be willing to die on that hill (SPOILERS current Manga) : r/OnePiece
Monkey D. Luffy, One Piece Wiki
Is Luffy related to Shanks in One Piece? - Quora
Is One Piece Film: Red Canon?
Review: One Piece Film: RED goes in an unexpected direction
One Piece Film: Red - Every Reveal About Shanks & His Crew
One Piece Film: RED – REVIEW – The Library of Ohara
Explained: Is One Piece Film: Red Canon and When Does It Take Place?
One Piece Film: Red' Who is Shanks' Daughter Uta?
One Piece Finally Makes a Big Character From Luffy & Shanks' Backstory Canon
Isn't it weird how Shanks' two main character design features were given to him by a fruitless Teach and an East Blue Sea King? : r/Piratefolk